1/*
2 * Copyright (C) 2017 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17/* Miniature version of a header-only keyutils.h (no library required) */
18
19#ifndef _INIT_KEYUTILS_H_
20#define _INIT_KEYUTILS_H_
21
22#ifndef KEYUTILS_H /* walk away if the _real_ one exists */
23
24#include <linux/keyctl.h>
25#include <stdarg.h>
26#include <sys/syscall.h>
27#include <unistd.h>
28
29static inline long keyctl(int cmd, ...) {
30    va_list va;
31    unsigned long arg2, arg3, arg4, arg5;
32
33    va_start(va, cmd);
34    arg2 = va_arg(va, unsigned long);
35    arg3 = va_arg(va, unsigned long);
36    arg4 = va_arg(va, unsigned long);
37    arg5 = va_arg(va, unsigned long);
38    va_end(va);
39    return syscall(__NR_keyctl, cmd, arg2, arg3, arg4, arg5);
40}
41
42#endif
43
44#endif
45